Is there any reason at face value why the teacher’s answer is correct? From my perspective the teacher is an idiot and missing some basic math skills.
Kid gave a reasonable answer without all the math bullshit
Submitted 10 months ago by Mickey7@lemmy.world to [deleted]
https://lemmy.world/pictrs/image/4e1356c0-88bb-4620-9340-d063ba584e51.png
Comments
RememberTheApollo_@lemmy.world 10 months ago
GeneralEmergency@lemmy.world 10 months ago
reasonableness
This is likely a question about some topic on reasonable questions and answers, rather than a maths question.
humorlessrepost@lemmy.world 10 months ago
If I saw two people order different sizes of pizzas, my mind wouldn’t be blown, and nobody would consider the situation unreasonable.
infinitesunrise@slrpnk.net 10 months ago
The question literally says “Marty ate more pizza”. It’s a foundational fact that you’re given as a part of the problem. If the answer was the say “Actually, no he didn’t” then you might as well answer “No, he actually at 1/6 of his pizza”.
Artemis_Mystique@lemmy.ml 10 months ago
no way “marty ate more” with the information given.
that is the ‘Expected’ answer
RememberTheApollo_@lemmy.world 10 months ago
So this is sort of a true/false math problem given to us, the viewer, out of context.
remon@ani.social 10 months ago
No. Within the parameters of the question it IS possible and the kid gave the correct answer.
A small fraction of X can have a bigger absolute value then a large fraction of Y when X is suffienctly larger then Y.
conditional_soup@lemm.ee 10 months ago
I… Um… I’ve been looking at this for a minute and I can’t tell why the answer is unconventional, not what the fuck the teacher is on about.
uniquethrowagay@feddit.org 10 months ago
The question asks “How is this possible?”
What they mean to ask is “is this statement true if both pizzas are the same size?”. To test whether the kids can compare fractures. It’s wrongly worded and the reaction is bad. If any of it is real.Freshparsnip@lemm.ee 10 months ago
The kid answered correctly, it’s not unconventional at all, the teacher is just stupid
Pnut@lemm.ee 10 months ago
I’m actually not sure this is real. I’ve had some shitty abusive teachers but even they would be capable of basic logic.
King3d@lemmy.world 10 months ago
It’s fucking dumb. No where did it say the pizzas are equal size. So the kids answer is just as right as her bullshit answer.
howrar@lemmy.ca 10 months ago
The kid actually answered the question. The teacher’s expected response is basically “no, your question is wrong and I refuse to answer it.”
lunarul@lemmy.world 10 months ago
No, the kid’s answer is not “just as right”, it is the correct and expected answer. The teacher’s answer is wrong and proof the teacher doesn’t understand the question. The entire point of the question is understanding that fractions of a whole are relative to that whole and you can’t directly compare fractions from different wholes like that. 5/6 > 4/6 doesn’t mean Luis ate more pizza than Marty, it means Luis ate a larger share of his pizza than Marty ate out of his own.
conditional_soup@lemm.ee 10 months ago
But… The teacher is just flat-out wrong. It says right there in the problem that Marty ate more, and then uses that fact as a foundation for the question of “x is true, HOW can x be true”. It’d be different if the question was “someone claims x is true; is it?”
iAvicenna@lemmy.world 10 months ago
lol this is actually a golden answer and that is why we need better teachers
Gorge@lemm.ee 10 months ago
In my experience this is how it feels to communicate as an autistic person
FourWaveforms@lemm.ee 10 months ago
Most threads on here remind me of that
infinitesunrise@slrpnk.net 10 months ago
Interesting, I’m autistic and what frustrates me here is that the question specifically asks you to posit “How is it possible” and the teacher insists that you’re supposed to just say it’s not.
hessenjunge@discuss.tchncs.de 10 months ago
I’m not autistic but agree that the kid gave the correct answer and the teacher is wrong.
If that had happened to my kid the teacher and I would have had at least one meeting.
humorlessrepost@lemmy.world 10 months ago
And it’s not even some crazy stretch to make the premises work. Like if it had said the pizzas are the same size, I’d have to try to come up with something ridiculous to meet the requirements of the question, but people order different size pizzas every day.
Kazumara@discuss.tchncs.de 10 months ago
Given 4/6 x > 5/6 y therefore x > 5/4 y
Marty’s Pizza must have been more than a quarter larger than Luis’. The kid is exactly right. And the teacher is not flexible enough to engage outside their expectations for how the question was supposed to be answered.
Freshparsnip@lemm.ee 10 months ago
I’m pretty sure the kid’s answer was how it was supposed to be answered
Trainguyrom@reddthat.com 10 months ago
Honestly I suspect the question was phrased poorly. It should have simply said “who ate more pizza” not stated who ate more and request to explain how
chatokun@lemmy.dbzer0.com 10 months ago
Now we know why teacher isn’t teaching math, but they should definitely not be teaching reasonableness either.
CannedYeet@lemmy.world 10 months ago
Marty ate some of someone else’s pizza
technocrit@lemmy.dbzer0.com 10 months ago
Math education in the empire is TERRIBLE. There is no actual math taught. At best it’s applied analogies. The teachers have never taken any advanced math so they don’t even know what they’re not teaching. The goals (eg. calculus) are completely worthless. The entire system is stuck in the 1700s. It’s a complete failure. This image is just the tiniest tip of the iceberg.
MDCCCLV@lemmy.ca 10 months ago
The empire?
some_guy@lemmy.sdf.org 10 months ago
conditional_soup@lemm.ee 10 months ago
We’re in the cursed timeline where Carlin didn’t lead the second American revolution.
Real talk though, it’s because we don’t have an education system, we’ve got a babysitting system. POSIWID.
Nalivai@lemmy.world 10 months ago
You might afford too much malice to something that might be just a generational incompetence total lack of care. Smart kids don’t increase this quarter’s profits, therefore are irrelevant.
young_broccoli@lemmy.dbzer0.com 10 months ago
Thats an awfuly convenient incompetence for the ruling class then.
Also, I dont know how things are where you live, but here in méxico we keep hearing, year after year, how topics and subjects are removed from school plans. Seems like a very obvious effort to “teach less” every year.
some_guy@lemmy.sdf.org 10 months ago
No. See sibling comment where I linked to George Carlin.
TheLowestStone@lemmy.world 10 months ago
This brings back memories of when I realized that I was smarter than most of my teachers.
Binturong@lemmy.ca 10 months ago
it’s fairly clear there are two pizzas, but as to ‘how’ someone eats more than someone else… this is not really a simple math question, there are too many unknown variables. Maybe one has Bulemia, maybe one of them is 6’9" and has a much bigger appetite. Maybe one of the people has a congenital deformity resulting in two mouths… This question is not a math question, it’s an exercise in creativity.
Lv_InSaNe_vL@lemmy.world 10 months ago
Yeah but none of those are relevant to this question?
Binturong@lemmy.ca 10 months ago
My point is the question is terrible, and one might as well answer however they like. It’s a basic logic test dressed up in fractions, the only answer is one pizza is bigger, but that’s apparently wrong, so you HAVE to be creative in describing how to solve the logical problem. Does this help you?
postmateDumbass@lemmy.world 10 months ago
How did they eat it?
They put it in their mouth, probably chewed a few times, swallowed, and then repeated the process as needed.
Q.E.D.
kautau@lemmy.world 10 months ago
Even if it is purely a math question though, it never specifies “Their pizzas are the same size.” The student literally answered how this is possible in a reasonable way that satisfies the mathematical requirements, when the teacher is expecting an impossible answer of “it’s not” after saying in this scenario that Marty did in fact eat more.
squaresinger@lemmy.world 10 months ago
Yeah, if the question was “Is this possible?” then the teacher’s answer would be reasonable.
But the “how” in the question implicates that it’s actually factual and the student should come of with an explanation how. Which they did perfectly.
tauren@lemm.ee 10 months ago
The question is stupid, but the kid’s answer is still wrong.
remon@ani.social 10 months ago
How is it wrong?
tauren@lemm.ee 10 months ago
It’s a basic assumption in these word problems. For instance, when they ask you to compare 2/4 and 2/8, you know that you can transform 2/4 to 4/8 and see that it’s greater than 2/8. It’s a basic school program, there are no tricks here. It’s a pure math exercise.
red_bull_of_juarez@lemmy.dbzer0.com 10 months ago
The writing looks like first or second grade. Where do they teach fractions in that grade?
bluewing@lemm.ee 10 months ago
Boys in particular, (though girls are not exempt from poor handwriting), will have “poor” penmanship pretty much all through elementary school and even into Jr High. And fractions are generally introduced at the end of the 3rd grade school year. And based on the question, that’s the likely grade level that test was created for.
I would bet that most of the students in that class got the answer correct because they were coached to read the question correctly-- to look for the fractions and simply compare them. And anyone else that didn’t, simply chose the wrong answer. Still, you will get a surprise answer like that every once in a while because kids are cool like that. It’s worth a chuckle as you move on.
AugustWest@lemmy.world 10 months ago
That looks like my writing now, and I’m in my 30s.
bluewing@lemm.ee 10 months ago
As a very old lefty, I wish my handwriting looked that good.
Mesophar@pawb.social 10 months ago
Damn, hope you graduate to Third Grade by 40!
henfredemars@infosec.pub 10 months ago
I know this is bait but who said they had the same-sized pizzas?
One could be XL the other one a personal pizza.
tauren@lemm.ee 10 months ago
I know this is bait but who said they had the same-sized pizzas?
That’s a base assumption when you compare fractions in these word problems.
DragonTypeWyvern@midwest.social 10 months ago
Assumptions make an ass out of you but not me
Excrubulent@slrpnk.net 10 months ago
Some real “steel is heavier than feathers” energy coming off this teacher.
Karyoplasma@discuss.tchncs.de 10 months ago
When I was in elementary, my teacher said that “Lutetia” was how the Romans called the city of Liege. As an avid reader of Asterix comics, I knew this isn’t true and corrected her and said it was the Roman name of Paris. She insisted that it is Liege. Anyway, the next day, she came back to class and said that she looked it up and that I was indeed correct and Lutetia referred to Paris and gave me a chocolate bar.
thedarkfly@feddit.nl 10 months ago
Dang, in which country are you talking about Liège in elementary school?
Karyoplasma@discuss.tchncs.de 10 months ago
Germany. IIRC the topic was Romans, not Liege specifically.
sigezayaq@startrek.website 10 months ago
haha, I also got some points in school for knowing that Lutetia is Paris, which I also found out by reading Asterix
squaresinger@lemmy.world 10 months ago
In my country, the written final exams include a Q&A section in the beginning of the test, where the teacher and the headmaster are present, and where they present the tasks and students are allowed to ask questions. After that section, the headmaster leaves and students and teachers aren’t allowed to talk for the rest of the test.
I noticed a missing specification in one of the tasks. It was a 3D geometry task, and it was missing one angle, thus allowing for infinite correct results. During the Q&A section I asked about that, and my teacher looked sternly past me to the end of the room and said “I am sure the specifications are correct”. If there was an actual error in the specifications, the whole test would have been voided and would have to be repeated at a later date, for all the students attending.
As soon as the headmaster was out of the room, he came to me and asked where he made the mistake. He then wrote a fitting spec on the whiteboard.
I liked that guy. He was a good teacher.
Jankatarch@lemmy.world 10 months ago
I always knew someone else knew about the series!
tomi000@lemmy.world 10 months ago
What do you mean someone else? Who doesnt?
Karyoplasma@discuss.tchncs.de 10 months ago
Asterix was pretty popular in the 90s Central Europe. The movies were in theaters, the older ones got prime time slots on TV, the comics were in every book store’s kids section.
tigeruppercut@lemmy.zip 10 months ago
An animated miniseries came out this year too
Enkrod@feddit.org 10 months ago
So…
(4/6)m >= (5/6)l m >= (5/4)l
Which means Marty’s pizza is one and a quarter the size of Luis’ pizza. We can comfortably just compare the area, since we can assume a flat disk with equal height for a pizza.
Assuming Luis’ pizza is a Domino’s Classic size of 25cm that’s an area of:
(25cm / 2)² * π = (625cm² / 4) * π = 490.874cm²So Marty’s pizza should be at least 490.874cm² * 1.25 = 613.5925cm² for 4/6 of his to be greater or equal of 5/6 of Luis’, so:
sqrt(613.5925cm² / π) * 2 = 13,975426964cm * 2 = 27,950853929cmSince Marty’s pizza is equal or greater, let’s go with 28cm diameter… which happens to match exactly a Domino’s Medium size.
That’s a very realistic scenario and the teacher is an absolute idiot for not understanding.
lugal@sopuli.xyz 10 months ago
Why would you ask “How is this possible” when you expect the answer to be “it’s not”?
Deceptichum@quokk.au 10 months ago
Cancel that teachers staff pizza party in lieu of a payrise pass.
ObviouslyNotBanana@lemmy.world 10 months ago
There’s nothing wrong with the answer.
ExtremeDullard@sopuli.xyz 10 months ago
The teacher is the one who’s confused here. The kid is entirely correct.
SassyRamen@lemmy.world 10 months ago
Take that to the principal, stupid teachers shouldn’t teach
FelixCress@lemmy.world 10 months ago
It is entirely possible and his answer was correct.
vala@lemmy.world 10 months ago
“This is not possible because…”
This kid is never going to trust teachers again.
He was right.
JeremyHuntQW12@lemmy.world 10 months ago
Its not a Maths test. Its a comprehension test.
Gumbyyy@lemmy.world 10 months ago
Which the teacher failed (assuming this is real)
voodooattack@lemmy.world 10 months ago
leds@feddit.dk 10 months ago
Valuable lesson learned, trust yourself instead of authority ( I hope at least that was it and not start of self doubting ever after)
UnderpantsWeevil@lemmy.world 10 months ago
If one bad response is enough to turn you off from anyone else teaching you anything ever, then you’re carrying some enormous trauma that has nothing to do with a single math question.
If one bad response is enough to open your eyes to the fallibility of individuals and lead you to think more deeply about where you get your information and how you evaluate the correctness of a response, then you’re going to go far and develop a much deeper understanding of the world.
SereneSadie@lemmy.myserv.one 10 months ago
You are massively not comprehending how a child thinks.
whome@discuss.tchncs.de 10 months ago
But those things stick. I did a geography test 35 years ago and wrote Canada instead of Kanada wich which is the correct spelling in German. In the eyes of my teacher I answered the question wrong and didn’t get the point, but I also got a point deducted because I did a spelling error. I didn’t lose trust in teachers or society in general, but this still nags me. :)